package com.md.EoL;

import java.util.Scanner;

public class EoL39 {

	public static void main(String[] args) {
		int a;
		Scanner scan=new Scanner(System.in);
		a=scan.nextInt();
		for (int i = 1; i <= a*2-1; i++) {
			for (int j = 1; j <= a*2-1; j++) {
				if (i<=a && j>a-i && j<a+i || a<i && j>i-a && j<=3*a-1-i) {
					System.out.print(" *");
				} else {
					System.out.print("  ");
				}
			}
			System.out.println();
		}
		
		
}
	
}